163215745

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{9859}}^1$

素因数の和:9925

約数の個数: 32

約数和(自身を含む): 249891840

約数和(自身を除く): 86676095

約数列:

[1, 5, 7, 11, 35, 43, 55, 77, 215, 301, 385, 473, 1505, 2365, 3311, 9859, 16555, 49295, 69013, 108449, 345065, 423937, 542245, 759143, 2119685, 2967559, 3795715, 4663307, 14837795, 23316535, 32643149, 163215745]

約数ペア:

[(1, 163215745), (5, 32643149), (7, 23316535), (11, 14837795), (35, 4663307), (43, 3795715), (55, 2967559), (77, 2119685), (215, 759143), (301, 542245), (385, 423937), (473, 345065), (1505, 108449), (2365, 69013), (3311, 49295), (9859, 16555)]